Where to stay
Garden Key, home of Ft. Jefferson, has one campground with 10 primitive first-come, first-served campsites -- eight individual, one group, and one grassy overflow area -- and come with some of the most incredible sunsets and stargazing you'll ever see all for only $15 per site, per night. All campsites have a three-night maximum if you arrive via ferry, or 14 days if you come via private boat. Ferries have space for 10 campers each way each day, but seaplanes won't carry camping gear.
When to go
The water is calmest during the summer, which makes for the clearest water and best snorkeling/diving. It’s also when the sea turtles come on land and lay their eggs, so if you don’t mind heat (average highs hover around 90 degrees from June through September) and a greater chance of rain, this is the best time. October brings cooler temperatures but also choppier waters, making for more unpleasant ferry rides and less visibility when snorkeling or diving.
April to mid-May is the best time for birding, as that is peak migration season.
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